2018016080

素因数分解:

$2^4\times 5^1\times {\mathrm{25225201}}^1$

素因数の和:25225214

約数の個数: 20

約数和(自身を含む): 4691887572

約数和(自身を除く): 2673871492

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 25225201, 50450402, 100900804, 126126005, 201801608, 252252010, 403603216, 504504020, 1009008040, 2018016080]

約数ペア:

[(1, 2018016080), (2, 1009008040), (4, 504504020), (5, 403603216), (8, 252252010), (10, 201801608), (16, 126126005), (20, 100900804), (40, 50450402), (80, 25225201)]